when i was on the motorway today i glanced at the dash and the glow plug light was flashing in and out? anyone could give any possible diagnosis and its booked into skoda tomorrow to get checked, when ever its under load its making a small noise i cant really tell what it is but if i had to take a stab in the dark i'd say turbo bearings?

Hard to say, the flashing noodle is a generic engine fault indicator.  The dealer will be able to scan it and tell you.

Took it in yesterday and told me the exhaust is leaking, so it's to go in on Tuesday to be fixed